NICKEL(II) CHLORIDE Property

Melting point:

1001 °C

vapor pressure 

1 mm Hg ( 671 °C)

form 

Crystalline Aggregates

color 

Green

Water Solubility 

Freely soluble in water. Soluble in ethylene glycol, ethanol, and ammonium hydroxide.

Sensitive 

Hygroscopic

Merck 

14,6505

Exposure limits

NIOSH: IDLH 10 mg/m3; TWA 0.015 mg/m3

Safety

Hazard Codes 

T,N

Risk Statements 

45-23/24/25-36/37/38-42/43-68-50/53-48/23-38-23/25-61-49

Safety Statements 

53-26-27-28-36/37/39-45-61-60

RIDADR 

UN 3288 6.1/PG 3

WGK Germany 

3

RTECS 

QR6480000

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H315Causes skin irritation

H317May cause an allergic skin reaction

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H372Causes damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P202Do not handle until all safety precautions have been read and understood.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P302+P352IF ON SKIN: wash with plenty of soap and water.

NICKEL(II) CHLORIDE Chemical Properties,Usage,Production

Uses

It is used in electroplating and as a catalyst for organic conversions, for example in chemo-selective thioacetalization of aldehydes. In combination with lithium aluminum hydride, it serves as a reducing agent for alkenes, alkynes, and organic halides; it can cleave N-O bond and open epoxides. It is a precursor to several nickel-phosphine complexes, such as bis(triphenylphosphine)nickel(II) chloride, which are used in alkyne trimerizations, carbonylations, and as catalysts in organic reactions such as Suzuki-Miyaura cross coupling reactions as an alternative to palladium(0) catalysts. It is the precursor to acetylacetonate complex of Ni, used for producing 1,5-cyclooctadiene complex, an important reagent in organonickel chemistry. It can be used to prepare the sandwich compound nickelocene through dimethoxyethane complex of nickel chloride.

Purification Methods

It crystallises from dilute HCl to form the green hexahydrate. At 70o this dehydrates to the tetrahydrate, and at higher temperatures it forms the anhydrous salt. It sublimes in yellow hexagonal scales in a stream of HCl. Store it in a desiccator as it is deliquescent. [Hart & Partington J Chem Soc 104 1943.]